'''Lanolin''' (from Latin
''lāna'', ‘wool’, and ''oleum'', ‘oil’), also called '''wool wax''' or '''wool grease''', is a wax secreted by the sebaceous gland
s of wool|wool-bearing
animals. Lanolin used by humans comes from domestic sheep Domestic sheep#Breeds|breeds
that are raised specifically for their wool. Historically, many pharmacopoeia
s have referred to lanolin as wool fat (''adeps
lanae''); however, as lanolin lacks glycerides
(glycerol esters), it is not a true fat.
[The Lanolin Book, Edited by Udo Hoppe, Published by Beiersdorf AG, Hamburg 1999]
Lanolin primarily consists of sterol
Lanolin's waterproofing property aids sheep in shedding water from their coats. Certain breeds of sheep produce large amounts of lanolin. There is an inverse correlation between fiber diameter and wool wax content.
Lanolin’s role in nature is to...